diff --git a/Makefile b/Makefile
index da13647..15de684 100644
--- a/Makefile
+++ b/Makefile
@@ -35,3 +35,7 @@ format_check:
 
 haddock:
 	cabal haddock --haddock-html --haddock-hoogle --builddir=haddock
+
+tag:
+	hasktags -x agora agora-bench agora-test
+